“I am working on a triple-header, assuming that on July 21, everything goes well with Andrien Broner,” said Schaefer on Wednesday.

“Or we would have the winner of Broner-Escobedo and Seth Mitchell and Gary Russell Jr. on one card. I’m working on that triple-header for the end of September or in October.”

Broner, who turns 23 on July 28, takes a mark of 23-0 that includes 19 knockouts into his HBO-televised match up with Escobedo (26-3, 15 KOs) at U.S. Bank Arena in Broner’s hometown of Cincinnati.

Broner is coming off an HBO televised fourth-round stoppage of previously unbeaten Eloy Perez (23-1-2, 7 KOs) in February, and Escobedo was last in the ring in May for a unanimous decision over Juan Ruiz in Escobedo’s hometown of Woodland, Calif.

Mitchell (25-0-1, 19 KOs), of Gwynn Park, Md., would be facing Johnathon Banks (28-1-1, 18 KOs, with whom he had been forced out of scheduled July 14 bout as a result of having strained his right hand.

Mitchell suffered the injury in a third-round stoppage of Chazz Witherspoon in April, this, after having scored a second-round knockout of Timur Ibragimov in December.

Mitchell will be after his 11th straight knockout against Banks in a clash of 30-year-olds that was to originally to appear on the undercard of Saturday’s junior welterweight matchup featuring former IBF and WBA beltholder Amir Khan and newly-crowned WBC titlewinner Danny Garcia on HBO from the Mandalay Bay Hotel in Las Vegas.

Russell Jr., who turned 24 last month, is out of of Capitol Heights, Md. Russell (20-0, 12 KOs) is coming off last month’s third-round stoppage of Chris Perez (23-3, 14 KOs) of Mexico.

Russell had been in line for an IBF eliminator bout against Cuban Olympian Luis Franco (11-0, 7 KOs), of Miami, whose winner was to challenge titleholder Billy Dib (34-1, 21 KOs), of Australia.

But Russell did not want to wait until the fall to face Franco, whose promoter was aiming for the matchup to take place at that time.